• Title/Summary/Keyword: Movable Shading Devices

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A Study on Design of Movable Horizontal Shading Device for Office Building (사무소건물의 가동식 수평차양에 대한 연구)

  • Kim, Mi-Hyun;Suh, Seung-Jik
    • Journal of the Korean Solar Energy Society
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    • v.28 no.2
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    • pp.50-57
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    • 2008
  • This study intends to evaluate the effect on indoor environment(annual thermal load, sunshine)by the application of the movable horizontal shading device on summer and winter season. For these purpose, we supposed the models which are composed of the several horizontal shading devices. Then we analyzed the simulation using the IES5.5.1 and Seoul weather data. The results of this study are as follows: 1) The proper length, angle of horizontal shading device is 2.1m, 28 degree, respectively. 2) The decreasing rate of the annual load of the Movable Horizontal Shading Model(MHSM) in comparison with the No Shading Model(NSM) & Conventional Horizontal Shading Model(CHSM) is 31.11%, 6.63% respectively. 3) The decrease of sunshine of the MHSM on summer season is effective the alleviation of visual displeasure. On the other hand, the increase of sunshine of the MHSM on winter season is effective the psychological comfort. Further study is to be required the sensitivity analysis on the various shading length for the realistic proper shading length.

Wind Pressure Analysis of Movable Shading Using CFD (CFD 해석을 이용한 가변 차양 장치의 풍압력 분석)

  • Kim, Gee-Chul;Lee, Joon-Ho;Baik, Yong-Kyu
    • Journal of Korean Association for Spatial Structures
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    • v.19 no.2
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    • pp.83-90
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    • 2019
  • Most of the variable shading devices are installed outdoors, so they are greatly affected by structural safety due to external climate change, wind, rain, and snow. Especially, due to strong wind such as typhoons, safety problems may occur due to the dropout of the device. Therefore, it is necessary to secure the structural safety against the wind. Therefore, it is necessary to analyze the structural behavior of the windshield to evaluate the structural safety of the variable sunshade device. In this study, we analyze the wind pressure applied to the shading material according to the change of the length of the variable shading device, and apply it to the calculation of the wind load for the structural design of the variable shading device. The CFD (Computational Fluid Dynamic) analysis of the structure of the sample was used to analyze wind pressure magnitude and distribution. In order to estimate the wind pressure, the maximum wind loads of the static and negative pressures acting on the structure were analyzed from numerical simulation results.